Results 121 to 130 of about 63,174 (260)
Quasi-Herglotz functions and convex optimization. [PDF]
R Soc Open Sci, 2020 Ivanenko Y +5 more
europepmc +1 more source
Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks
Advanced Science, EarlyView.Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley +1 more source
Variable Smoothing for Convex Optimization Problems Using Stochastic Gradients. [PDF]
J Sci Comput, 2020 Boţ RI, Böhm A.
europepmc +1 more source
Optimization of Risk Measures [PDF]
We consider optimization problems involving coherent risk measures. We derive necessary and sufficient conditions of optimality for these problems, and we discuss the nature of the nonanticipativity constraints.
Andrzej Ruszczynski, Alexander Shapiro
core
Bilateral SERS‐Microneedle Patch for Co‐Diagnosis of Diabetes Mellitus and Tuberculosis Comorbidity
Advanced Science, EarlyView.Our study introduced a U@mP@Au‐mediated bilateral SERS‐microneedle patch for analyzing glucose levels from ISF and sensitively detecting TB biomarkers from sputum, respectively. This integrated dual‐analyte detecting platform can be used for co‐diagnosis of diabetes mellitus (DM) and tuberculosis (TB) comorbidity, which was demonstrated in ex vivo ...
Xueqin Huang +12 more
wiley +1 more source
A Method For Approximating Univariate Convex Functions Using Only Function Value Evaluations
In this paper, piecewise linear upper and lower bounds for univariate convex functions are derived that are only based on function value information. These upper and lower bounds can be used to approximate univariate convex functions.
Siem, A.Y.D. +2 more
core
Strain‐Preserving Transfer of Freestanding Oxide Membranes for Tunable Magnetic Anisotropy
Advanced Science, EarlyView.An epoxy‐assisted exfoliation and transfer strategy circumvents the trade‐off between structural flexibility and strain tunability in freestanding oxide membranes. Epitaxial strain is effectively preserved, enabling versatile and robust control of magnetic anisotropy without sacrificing flexibility.
Jinfeng Zhang +13 more
wiley +1 more source
Advanced Science, EarlyView.We synthesized a high‐performance balanced ambipolar OECT polymer, P(gTDPPSe), via selenophene π‐bridge engineering. The selenophene π‐bridge enhances backbone planarity and optimizes the energy levels for doping, enabling high and balanced p/n‐type transconductance‐a key factor for high‐gain complementary inverters.
Guichuan Zhu +4 more
wiley +1 more source
Advanced Science, EarlyView.A dynamic reconstruction strategy was utilized to construct PtCu/Cu3P heterostructures on the surface of self‐supporting Cu3P nanowires. The loose porosity in the restructured layer, together with a dynamic “dissolution‐redeposition” equilibrium during electrocatalysis, enables the electrode to maintain a low, stable overpotential for 240 h at ampere ...
Kaixi Wang +3 more
wiley +1 more source
Optimization of Sparse Cross Array Synthesis via Perturbed Convex Optimization. [PDF]
Sensors (Basel), 2020 Gu B, Chen Y, Jiang R, Liu X.
europepmc +1 more source